EP 3748339 B1 20240221 - DEVICE FOR GAS ANALYSIS USING RAMAN SPECTROSCOPY
Title (en)
DEVICE FOR GAS ANALYSIS USING RAMAN SPECTROSCOPY
Title (de)
VORRICHTUNG ZUR GASANALYSE MITTELS RAMAN-SPEKTROSKOPIE
Title (fr)
DISPOSITIF D'ANALYSE DE GAZ À L'AIDE DE LA SPECTROSCOPIE RAMAN
Publication
Application
Priority
IT 201900006954 A 20190517
Abstract (en)
[origin: EP3748339A2] Device (12) for analyzing the gas composition, of an optical type, characterized in that it comprises:- an exciting radiation emitter (14) comprising a multimode laser source (16) configured to emit a laser beam;- an analysis cell (18) suitable for containing a gas, said analysis cell (18) having an inlet duct (20), through which a gas can flow inside said analysis cell (18), and a outlet duct (22), through which the gas can flow from the analysis cell (18); said analysis cell (18) comprising a focusing lens (24), suitable for focusing said laser beam in a focal area (26) inside the analysis cell (18), said focal area (26) acting as a source for radiation Raman collected in a direction perpendicular to the direction of the beam, said analysis cell (18) comprising a window (27) and/or lens suitable to be crossed by said Raman radiation,- an imaging group (28) of the Raman source and a spectrograph (30); said imaging group being suitable for forming an image of the Raman source input to said spectrograph (30); and- a detector (32) suitable for collecting the image of the spectrum formed by the spectrograph (30),and also characterized in that the seal for the gas inside said analysis cell (18) is obtained, in correspondence with the entry of the laser beam into the same analysis cell (18), by means of said focusing lens (24).
IPC 8 full level
G01N 21/65 (2006.01); G01J 3/02 (2006.01); G01J 3/18 (2006.01); G01J 3/28 (2006.01); G01J 3/44 (2006.01); G01J 5/80 (2022.01); G01N 21/03 (2006.01)
CPC (source: EP)
G01J 3/0208 (2013.01); G01J 3/18 (2013.01); G01J 3/2823 (2013.01); G01J 3/44 (2013.01); G01J 5/806 (2022.01); G01N 21/0303 (2013.01); G01N 21/65 (2013.01); G01N 2021/0392 (2013.01); G01N 2021/651 (2013.01); G01N 2201/0642 (2013.01)
Citation (examination)
- US 2015090900 A1 20150402 - BANKS RODNEY H [US], et al
- US 2004160601 A1 20040819 - WOMBLE M EDWARD [US], et al
- US 2004042006 A1 20040304 - CHEN PETER [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3748339 A2 20201209; EP 3748339 A3 20210310; EP 3748339 B1 20240221; EP 3748339 C0 20240221; EP 4339570 A2 20240320; IT 201900006954 A1 20201117
DOCDB simple family (application)
EP 20175034 A 20200515; EP 24151970 A 20200515; IT 201900006954 A 20190517